Check-valve.



UNITED sTATEs PATENT OFFICE l GEORGE A GAsE, or CLEVELAND, omo, AssIGNoE, `Ev MEsNE ASSIGNMENTS, To THE ICELEss MACHINE COMPANY, or CLEVELAND, omo, A CORPORATION or omo.

CHECK-VALVE.

- To all whom it may concern Be it known that I, GEORGE A. GAsE,a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ghio, have invented certain new and useful improvements in Check-Valves, of which the following is a full, clear, nd exact description, reference being had to accompanying drawings.

This invention relates to checlrvalves, has for its object t0 provide a simple. ficient check valve which may be che manufactured.

Another object is to provide such a checlr valve having a valve member and seat member,` one of such members being automatically conformable to the other, whereby liquids 'or gases of high rarity or tenuity are prevented from leaking therethroup .Y

Another object is to so arrange parts that the valve member and readily accessible for cleaning,"re thev arts, etc. i

lV y invention is hereinafter more fully described in ,connection withV the drawings and the essential characteristics are set forth in the claims.

, Figure 1 is a vertical central section through'my check valve; Fig. 2 is a plan of the same; Fig. 3 is a plan of the flexible diaphragm forming the seat; Fig. 4 is an enlarged cross section of such diaphragm showing the position of the ball, and the surlface on which it rests.

Referring to these drawings by reference numerals, 5 indicates the body, which may be of any desired form. As shown, it is Spbstantially cylindrical, being provided with an angular portion 6 at its lower end and having therethrough a passage 8 to. which fluids is led bymeans of a suitable pipe 9.

Preferably at the upper portion, are provided threads Which receive a threaded ang'ed collar 10 having an angular portion 11,V having an inward y turna;- ange 112. Secured to the body portion a this {iange 12 is a chambered member le, having an outn wardly turned .flange 15 coperating with the liange 12 and which, as shown, 1s provided with an upwardly extending nipple 16, having suitable external threads to wh1ch may be secured a suitable fitting for a pipe leading the fluidaway from the valve.

Specication. of Letters Patent.

Patented Dec. 14, 1915.

Application flied .une 11, 1914. Serial No', 844,560.

Between the chambered member ltand 'the body 5, is clamped the periphery of a,

ilexible metal disk 18, having a central openout-away portion 22, allowing the dia phragm to spring slightly.

Now it will be seen that iuid may pass through thecheck valve by raising the ball 20 from its seat and passing out of the nipple 16, but is prevented from passing backwardly through the valve by the ball seating itself in the openingin the, diaphragm.

The fiexibility of this diaphragm' provides .for its automatically adjusting itself to any irregularity, however sli ht, in the spherical l.

surface of the ball 20, a lowing this ball to be very tightly seated. The ',cutfaway, p ortion 22 provides a space allowingcthe spring I movement of this diaphragm, but the distance between this diaphragm and the shoul- Ader formed by this-'cutawyportion is [xreferably only suihcient to allow this necessary 1 adjusting movement, and- ',undei'i exceeding pressure, may act to ,'einforce theA diaphragm which may be -pressedA against it,

istort or brea thereby preventing the dia hragm sprin 1.85m

ing such an amount as to the same.

Heretofore in ball valves, therey has been great gliiiiculty in providing a valve which is absolutely tight, asitis impractical to provide or., secure balls which are absolutely spherical, and the I slight irregularities in the `,spherical surface leave a very slight opening between the ball and a rigid seat,

which p fermits thepassageof rare iiuids,z My device obviates .this

under pressure. difiicuity. It will be noted from Fig. 4 that ball seats ona very narrow seat indicatedv 2e, which conforms tothe surface of the ball, yet provides sumcient contact to form a tight closure.

lt is obvious that-the-,head and cham- .bered'member 14 may be of any convenient form '.desired, 'and the-diaphragm may'A be secured in position inpany desired manner.

A simple andeicientyalve,"which when,

` and a balltted into Seid opening :md

suitebie i ing acl-ess hele thi-buig it., thee buil. el he than the leerse gif eonnefl be'i side of the diephimu o, bali, being adapted te :geht in the round .hele and having its movement limited :5e hnl; its center `will not pass beyond the edge of the hole. y

2. In av'eheek valve, the combination with a. Casing, e chambered member seemed they@ te, e fiexibe diaphragm damped L its mmfgin between. the ehembered member and 'the valve body and having :i cenbml epenihg,

mi und the www ground .in place 'pz-eviding n chamfered e ge en. seid Opening, seid chemise-,red member loosely'surrounding; bhe bail and. eewhg lemahce ar'euhd it whie preventing its center passing beg/*0116i the periphery ef the openng-` Y n a cheek vave5 the eombineifm with beey and a elmmbeied :w

wey :md ne 'i. in u, ehhh mbe., he combination el :L body having s passageway through i, n fie ibe phznzu.' diaphragm). adapted extend :mir-ess he body 1 d. having u hele register im; with Said pas evfuy, there being un zu1- nuhu' in the bedjy' zii-(mud the passage 1^neem; ie fie diaphragm, u buil mi the nher side of th diupbragiil from said recess; ednpl fue in the hole in the diaphmgm .hid Giese it, edge of the diaphragm heie being chemfered, u easing ieosely chntfiiiiihg the bell, :md menus for ehu'alliing the easing toward said body 01'1 the interposed edge of the diaphragm.

h b immiy whexeok, l hereunto 11H12( my eigxmtrire in 'the presence of two witnesses.

GEO. A. 

